Finding the Fourth Proportional to 17,917.98, 24,728.82 and 9,960.96

Step by Step Solution

1. Step 1: Write the proportion equation
   17,917.98 : 24,728.82 = 9,960.96 : x
2. Step 2: Convert to fraction form
   17,917.98/24,728.82 = 9,960.96/x
3. Step 3: Cross multiply
   17,917.98x = 24,728.82 × 9,960.96
4. Step 4: Simplify right side
   17,917.98x = 246,322,786.87
5. Step 5: Solve for x
   x = 246,322,786.87/17,917.98
6. Step 6: Final answer
   x = 13,747.24